Exercise: Power Electronics

Questions for: Power Electronics

When an SCR is in forward blocking mode, the applied voltage
A:
appears across only one junction
B:
is equally shared by two junctions
C:
is equally shared by three junctions
D:
may appear across one or more junctions
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Which inverter circuit uses coupled inductors?
A:
Modified McMurray full bridge inverter
B:
McMurray Bedford half bridge inverter
C:
Modified McMurray Bedford half bridge inverter
D:
Both (b) and (c)
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
A 3 phase dual converter consists of
A:
two 3 phase semiconverters connected in parallel
B:
two 3 phase semiconverters connected in antiparallel
C:
two 3 phase full converters connected in antiparallel
D:
two 3 phase full converters connected in parallel
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️

Assertion (A): A half wave controlled rectifier has poorer efficiency and higher ripple factor than a full wave controlled rectifier.

Reason (R): The use of a freewheeling diode in half wave controlled rectifier circuit improves the waveform of load current and circuit power factor.

A:
Both A and R are correct and R is correct explanation of A
B:
Both A and R correct but R is not correct explanation of A
C:
A is correct but R is wrong
D:
A is wrong but R is correct
Answer: B
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Which of these devices can conduct in both directions?
A:
SCR
B:
SUS
C:
SBS
D:
UJT
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz